There are two windows in the dialog: the first window is for adding of a value to the list, the second window is the list of added values.
|Add||Adds the value entered in the first window to the list. If the value is many-lined, the end-of-line character is replaced by the character that serves as the end-of-line.|
|Delete||Removes the selected value from the list.|
|Move Up||Moves the selected value up the list.|
|Move Down||Moves the selected value down the list.|